Which of the following is the best evidence to support the belief that air is matter? A-You can't see air
B-you can feel air blown from a fan
C- air weighs nothing and has no mass
D- air is what we breathe

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Nonpoint source pollution is difficult to control because it

Can someone me with 6 to 10 plz this is for masteries test.